Thanks Tom. Yeah, if you can't beat it work with it.
I've always enjoyed the dance of light, I rarely feel like it detracts from the image.
Asher, I'll try to explain the process. But first I'll admit that there's a large slice of guess work involved and although I've become familiar with some of the vagaries involved I never quite know what I've got till after the shot is taken.
I was shooting macro (extension tube with a 50 mm 1.8 lens). I'm crouched on rocks (complete with barnacles and sharp edges) and peering into rock pools with about 6 - 8 inches depth of water.
I'm always trying to explore plays of light, so I have reflection, refraction and also I believe, diffraction to play with. This sets up a set of circumstances where clear focus is extremely difficult to achieve. especially over the whole frame. Don't forget, my depth of field is very shallow even at F22.
So anyway, I've learned to abandon hopes of particularly sharp images and rely on dreamy, swirly, colourful imagery to carry the day. It's certainly the point at which I'm treating light as the medium and just try to have fun with it.
Here's a sample of a scene that I feel might have some potential when the water starts to move. These rock pools are being fed by waves so the are periods of stillness, mild rippling (wind also plays a part), surging, foaminess,...all somewhat predictable and also quite random.
Now we have some movement and things get interesting and wacky
Notice the specular reflections at the bottom left over the purple shell.
Now when you slow the shutter speed down, roughly 1-1.5 seconds the writing/scribbling effect comes into play.
The point of focus is beyond the water's surface so it's the fine point nature of the highlights which keeps them sharp. The water surface is in a state of flux which includes rising and falling so it is again difficult to select a point of pure focus.
It would be fair to say that there is no point of focus in this style of imagery but I like it anyway!